Split your calculated 2stroke exhaust up to 42 sections with regular length or even more with irregular lengths. Two stroke engine boost bottle article courtesy of lowell horning at 2 stroke. Aug 09, 2014 basically a tuner types in engine spec dimensions like the bore and stroke plus all the individual port measurements. My name is ed erlenbach, im a private tuner specializing in yamaha rd and tz performance in southern california. Really cool two stroke cylinder porting software youtube. Recently searched for tom turners two stroke racing website looking for his two stroke tuning software only to find out. Tsr continuously backup easy to use protection of files, never miss a file.
Tsr twostroke racing software bellflower ca, 90706. From what ive heard the software is timed to stop working after. From an engineering standpoint the tsr software is pretty lowend, but if you dont have any experience with any cad or cfd software, it is probably your best bet. This software is classified as a two cycle wave action simulator it will visually display the wave activity of a running twostroke engine. Note that we want the actual stroke, not the crankshaft throw which will be half the stroke. Among different methods of scavenging, uniflow scavenging is most commonly used in the marine two stroke diesel engines for its highest efficiency. Great tool for those who are building exquisite format exhausts, one of the largest benefits of this module is that it can be used with any exhaust formula results.
Turners two stroke racing tsr is an unclaimed page. We shall send you a pdf document with the templates for manufacturing your exhaust. Tsr two stroke racing software motorcycle engineering. This means that to run motax, you will need a post 2010 computer which is preferably a desktop, driven by an intel i7 4core processor. Blair sae, dynomotion 2, mota v 50, and tom turners tsr software.
Blair of queens university belfast, and published by the society of automotive engineers. Moreover you can have advices for the development of the engine thanks to the help of tested formulas for intake, exhaust, blowdown and transfer. Cc specialty tools porting and polishing for 2 stroke engines. Tom turner of tsr offers a program to calculate squish velocities based on combustion chamber. The software does complete cycle simulation of the whole internal combustion process including the gasdynamics in the pipesducts, ports and plenums air boxes, boost bottles, exhaust boxes etc. Tsr watermark image professional watermarking tool. Determine the level of porting you wish to achieve before you start cutting or grinding. Software for fine tuning and design of two stroke engine.
Simulation of a twostroke diesel engine for propulsion in waves. Tsr two stroke racing software designed and built his 424cc yamaha rd400 dragbike to develop and prove his racing design software and prove it, it did. This software is classified as a two cycle wave action simulator it will visually display the wave activity of a running two stroke engine. We have been advancing our 2stroke engines for over 37 years and we are now offering the software we designed to set many of our world records. Two stroke engine and exhaust design software north. Tsr copy changed files free software for logging changed and modified. So whether you have a 50cc road bike, a 500cc motocrosser or a classic racer. Cc specialty tools porting and polishing tools proud customers.
Software for fine tuning and design of two stroke engine by. Racingsm software has features for many different areas 2stroke exhausts development, drag racing features, simulators, carburetor tuning, connectingrod analysis etc with all this knowhow along with lufo racing heritage, we believe this is a very fair price. This is the height of the piston from the lower edge to the perimeter of the. There are many ways to boost the power, one of which is by installing a tuned pipe. Tsr twostroke racing software is an unclaimed page. The information used in the programs calculations was taken from the books the basic design of the two stroke engine and the book design and simulation of two stroke engines. Vannik developments two stroke engine simulation software. Tsr lan messenger encrypted interoffice communications with no outside interference. Tsr two stroke racing software designed and built his 424cc yamaha rd400. Support racingsm by subscribing our youtube channel. Tsr s programs will get a tuner 90% to the engines potential. The software programs from blair, tsr and bimotion all include this feature as part of the two stroke engine design data crunching its probably the most important head design program to own. But because of the limited worldwide activity in two stroke engine development, program sales were limited and further development was curtailed. Basically a tuner types in engine spec dimensions like the bore and stroke plus all the individual port measurements.
Head calculations using tsr software by sainty ok here goes with the new specs after redoing both the stroke length and the exhaust opening the very first thing to be done is to calculate the compression ratios both corrected and uncorrected. We have been advancing our 2stroke engines for over 37 years and we are now offering the software we designed to. Racingsm software has features for many different areas 2 stroke exhausts development, drag racing features, simulators, carburetor tuning, connectingrod analysis etc with all this knowhow along with lufo racing heritage, we believe this is a very fair price. No previous knowledge of the two stroke cycle engine is required just input the required data and then run mota to set in motion this powerful process. Two stroke engine boost bottle article courtesy of lowell horning at. With 2 stroke engine modification, porting and polishing is the ultimate choice. You can estimate the octane requirements and the cranking psi of the engine ignore the squish width on this program as it does not. You can work change variables with the bhp brake horsepower formulae. Decades have passed since i hung around with john and jim.
Two stroke design instead you can enter the data of your cylinder with extreme facility and precision, and then analyze the port areas and the timing area in the engine cycle timing for each phase. Mar 14, 20 buying tsr two stroke software by tom turner. He will do one of two things,hang up, or if he is a good one,start explaining the complex nature of fluid dynamics, sonic wave pressures and the effects temperature on the speed and timing it takes to hit an open exhaust port at 6500 rpmsthis being said. Recently searched for tom turners two stroke racing website looking for his two stroke tuning software only to find out that he has retired and shut the website downbummer. Bimotion 2 stroke software has been commercially available and in professional use since 1991. Bimotion 2stroke software has been commercially available and in professional use since 1991.
Read my expansion chamber theory page to get a full understanding of how expansion chambers work and click here to read more of the details of this spreadsheet. It contains an asbuilt report on the status of the hdd of pipes and cable, which includes water lines, gas lines, and other crossings. Lets journey back to 1973 and read the book that was the two stroke bible of that era. All engine development is done exclusively with tsr two stroke racing engine design software and. A tsr file is a tracker status report used by subsite electronics software that specializes in horizontal directional drilling hdd guidance systems for installing and maintaining underground pipe and cable. Zweitakter simulation tuning freeware dynomation pipemax tsr two stroke port2000 newpipe lotus engineering software bevenyoung stroke lesoft mota. Calculates port heights from durations, or durations from port heights. But because of the limited worldwide activity in twostroke engine development, program sales were limited and further development was curtailed.
The tsr software does take a bit more knowledge of engine theory and operation than the race logic templates do of course. Ignition accelerates the piston down, forcing the reeds to snap shut. Two stroke engine and exhaust design software post by michael moore sat jan 16, 2016 6. Two stroke engine and exhaust design software post by michael moore. I use the tsr computer software to calculatepredict the horsepower. In two stroke diesel engines, expulsion of the combustion gas out of the combustion chamber and intake of fresh air charge happen simultaneously. Processors with a lower number of cores will run the motax expansion chamber optimiser, as will the latest. Two stroke cylinder porting tips watch this before you start cutting. Two stroke engine boost bottle expert tuner lowell horning talks about boost bottles.
Purchase the porting tools you need at our online store. Tsr copy changed files free software for logging changed and modified files. Jan 19, 2008 he will do one of two things,hang up, or if he is a good one,start explaining the complex nature of fluid dynamics, sonic wave pressures and the effects temperature on the speed and timing it takes to hit an open exhaust port at 6500 rpmsthis being said. Vannik developments is the originator of two internal combustion engine simulation software suites engmod2t. This toolkit offers some basic two stroke engine calculators in hand but also extends to some advanced as well tuning menu. I have heard trs software is similar, but gp blairs is cheaper plus it comes with a book explaining all of the engineering behind it. Are you tring to determind optimal port timing, build jetting charts. Tsrs programs will get a tuner 90% to the engines potential. Regarding computers, a terminateandstayresident program commonly referred to by the initialism tsr is a computer program that uses a system call in dos to return control of the computer to the operating system, as though the program has quit, but stays resident in computer memory so it can be reactivated by a hardware or software interrupt. With 4 stroke engines, porting, when performed correctly and with the right tools, will result in positive horsepower gains, along with increased fuel efficiency and a smoother running engine. Bmep hp x 6500 l x rpm 2 stroke l engine size in liters. Cc specialty tools porting and polishing for 2 stroke, 4 stroke, rotary engines. Tsr twostroke racing engine design software at bikelinks.
They are so simple and fun that ive always enjoyed tinkering with them. Tsr copy changed files software the copy changed files tool is a free program that lets you copy changed files from one directory tree to another. Assign fixed relationships between transfers and exhaust port. Apr 08, 2007 from an engineering standpoint the tsr software is pretty lowend, but if you dont have any experience with any cad or cfd software, it is probably your best bet. New feature of racingsm software, the 2stroke exhaust segment splitter. Page 2 of 2 porters posted in mach z mach 1 formula iii triples. The idea is to design each specific engine parameter as completely as possible, then assemble the separate components into an engine to make an outstanding finished product. How to tips from tj on porting and polishing 2 strokes.
Improve the performance of your twostroke engine with a torqsoft designed exhaust system. The software does complete cycle simulation of the whole internal combustion process including the gasdynamics in the pipesducts, ports and plenums air boxes, boost bottles. Tools of the trade, by eric gorr the dirt bike, mx. Tom turner, master two stroke tuner, pipe builder, and the man that developed tsr two stroke racing software designed and built his 424cc yamaha rd400 dragbike to develop and prove his racing design software and prove it, it did. The program runs mathematical calculations in order to provide a simulation of how the porting changes will affect the engines powerband. The way a two stroke motor works causes them to be f. Apr 08, 2007 if you are just getting started get g.
There is a huge interest in vintage snowmobiles and their simple two stroke power plants of yesteryear. Test your own theories on porting and exhaust pipe design. Bigger carburetors, higher compression ratios, altered port timings and expansion. You can estimate the octane requirements and the cranking psi of the engine. There is a wealth of knowledge contained in this manual. Hi all, does anyone have an original set of tsr, engmod2t or mota v5 two stoke tuning software. Suggested by umg lady gaga stupid love official music video song just dance a cappella artist lady gaga. Two stroke tuners handbook 2 another mistake commonly made, sometimes even by those who have enjoyed some success in modifying twostroke engines, is to believe in a kind of mechanistic magic. Tsr software creating simple solutions to complex problems. How exhaust port timing affects two stroke performance. Two stroke designmodification software the following are spreadsheets for different aspects of 2 stroke designmodification. Tsr seems to have a software program for everything there are many individual software programs involved here. Piston height mandatory parameter if performing any timing calculation. The worlds leading 2stroke engine simulation software available readytorun on your pc, at only.